Window Replacement Cost in Philadelphia (2026)
Average cost in Philadelphia
$2,495 – $8,197
$300 – $1,200 per sq ft
In Philadelphia, the average is $5,310 and most projects cost between $2,495 and $8,197, or about $300 – $1,200 per sq ft. Prices are before tax and based on 9 sources.
Cost Breakdown
ItemizedVinyl, fiberglass, or wood frames and glass packages
75%
Professional installation and glazier wages
15%
Removal of old windows and site debris
5%
Sealants, flashing, and insulation foam
3%
Philadelphia L&I exterior window permit fees
2%
Sales Tax at 6%
📋What's Included
ScopeTypically Includes
- Standard vinyl double-hung windows
- Removal of old windows
- Installation & insulation
- Interior trim
- Cleanup
Typically Excludes
- Custom or specialty shapes
- Triple-pane or premium glass
- Exterior trim or cladding
- Structural modifications
- Bay or bow windows
Based on replacing 10 standard-size windows with vinyl double-hung.
🧮Estimate your project
LiveYour estimate in Philadelphia
Likely range $2,495 – $8,198
- Materials75%$3,983
- Labor15%$797
- Disposal & Cleanup5%$266
- Miscellaneous Supplies3%$159
- Permits2%$106
Vinyl
$5,310
Fiberglass
$7,313
Wood
$9,317
Aluminum-clad Wood
$11,321
Calibrated to 9 researched sources for Philadelphia. Before tax. Real quotes vary with site conditions.
📈Price Momentum
Year-over-year~1 year ago
$5,145
Today
$5,310
Window Replacement in Philadelphia is ↑ 3.2% compared to roughly a year ago — about $165 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Window Replace Contractors in Philadelphia
Verified providersRenewal by Andersen Window Replacement
761 5th Ave #3, King of Prussia, PA 19406, USA
6,246 reviews
Definis and Sons Window and Door Inc.
8312 State Rd., Philadelphia, PA 19136, USA
147 reviews
Window World of Philadelphia
253 Horsham Rd, Horsham, PA 19044, USA
395 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
Yes, Philadelphia's Department of Licenses and Inspections (L&I) typically requires a permit for exterior window replacement, which carries a standard filing fee of approximately $100. Structural changes or work in historic districts like Society Hill require additional approvals.
The average installed cost per window in Philadelphia is approximately $1,038. This typically breaks down into $889 for materials and $148 for labor, though premium fiberglass or wood units can exceed $1,500 per unit.
Homeowners in the Philadelphia climate zone can expect to save between 15% and 25% on annual heating and cooling costs, which averages to about $317 in annual savings for a typical row house.
The most cost-effective time to book a project is between November and February. During this off-peak season, contractor demand is lower, and some local companies offer 'winter discounts' to keep crews busy.
📊Our Methodology
How we collect dataAggregated from 7+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: 1 months ago. Updates run weekly. All costs in USD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.